Finding the Fourth Proportional to 138,078.10, 207,117.15 and 44,593.30
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Solution
The fourth proportional to 138,078.10, 207,117.15 and 44,593.30 is: 66,889.95
Step by Step Solution
- Step 1: Write the proportion equation
138,078.10 : 207,117.15 = 44,593.30 : x - Step 2: Convert to fraction form
138,078.10/207,117.15 = 44,593.30/x - Step 3: Cross multiply
138,078.10x = 207,117.15 × 44,593.30 - Step 4: Simplify right side
138,078.10x = 9,236,037,205.10 - Step 5: Solve for x
x = 9,236,037,205.10/138,078.10 - Step 6: Final answer
x = 66,889.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.